RADICAL CYCLOCOPOLYMERIZATION OF DIVINYL ETHER AND MALEIC ANHYDRIDE. A 13C-NMR STUDY OF THE POLYMER STRUCTURE.

Toyoki Kunitake, Mitsuo Tsukino

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25 Citations (Scopus)

Abstract

In the reported experiments, the structure of the 1:2 copolymer of divinyl ether and maleic anhydride was investigated by **1**3C-NMR spectroscopy. The polymer contains the bicyclic unit composed of one molecule of each monomer and the maleic anhydride unit. The carbon chemical shift for these units was calculated on the basis of the chemical shift of many model compounds. The major peaks of the cyclopolymer prepared in chloroform were consistent with the presence of the symmetrical bicyclic unit with cis junction and the trans monocyclic anhydride unit. The carbonyl carbon spectrum for the copolymer obtained in a mixed solvent of acetone and CS//2 suggested the predominant formation of the unsymmetrical bicyclic unit. The polymerization process was discussed on the basis of these results.

Original languageEnglish
Pages (from-to)877-888
Number of pages12
JournalJ Polym Sci Polym Chem Ed
Volume17
Issue number3
DOIs
Publication statusPublished - Jan 1 1979

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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